diff --git a/tox.ini b/tox.ini
index e0d3386db..7edcfde2c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -106,6 +106,7 @@ commands =
 	 sphinx-build -W -b epub -d {envtmpdir}/doctrees -D latex_elements.papersize=letter . _build/epub
 	 sphinx-build -W -b latex -d {envtmpdir}/doctrees -D latex_elements.papersize=letter . _build/latex
 	 make PDFLATEX=xelatex -C _build/latex all-pdf
+	 make PDFLATEX=xelatex -C _build/latex all-pdf
 	 sphinx-build -W -b coverage -d {envtmpdir}/doctrees -D latex_elements.papersize=letter . _build/coverage
 
 [testenv:badges]